package com.freshmarket.freshmarket.controller;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.freshmarket.freshmarket.configuration.AlipayConfig;
import com.freshmarket.freshmarket.entity.User;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.UUID;
@RestController
public class PayMoneyController {
    @RequestMapping("pay")
    public void payMoney(HttpServletRequest request, HttpServletResponse response, HttpSession session) throws IOException {
        response.setContentType("text/html;charset=utf-8");
        PrintWriter out = response.getWriter();
        String money = request.getParameter("userMoney");
        System.out.println("金额"+money);

        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig.notify_url);
        //随机生成订单编号
        String id =( UUID.randomUUID()+"").replace("-", "");
        //商户订单号，商户网站订单系统中唯一订单号，必填
        String userId=((User)session.getAttribute("user")).getUserId()+"";


        System.out.println("用户id:"+userId);
        String out_trade_no = id;
        //付款金额，必填
        String total_amount = money;
        //订单名称，必填
        String subject = userId;
        //商品描述，可空
        String body = "充值余额";
        //用户id
        //用户余额
        String extend_params =userId;
        alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                + "\"total_amount\":\""+ total_amount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"body\":\""+ body +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        //若想给BizContent增加其他可选请求参数，以增加自定义超时时间参数timeout_express来举例说明
        //alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
        //		+ "\"total_amount\":\""+ total_amount +"\","
        //		+ "\"subject\":\""+ subject +"\","
        //		+ "\"body\":\""+ body +"\","
        //		+ "\"timeout_express\":\"10m\","
        //		+ "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
        //请求参数可查阅【电脑网站支付的API文档-alipay.trade.page.pay-请求参数】章节

        //请求

        String result;
        try {
            result = alipayClient.pageExecute(alipayRequest).getBody();
            out.println(result);
        } catch (AlipayApiException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        //输出
    }
}
